why does my car sounds like a cricket at idle?
11-25-2009, 06:54 AM
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i've noticed lately that there is a subtle chirping sound coming from the engine compartment when my car is at idle... it is very noticeable when i am in a drive through...
anyone heard something like this?
anyone heard something like this?
11-25-2009, 09:01 AM
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Originally Posted by e6t' post='1062392' date='Nov 25 2009, 10:54 AM
i've noticed lately that there is a subtle chirping sound coming from the engine compartment when my car is at idle... it is very noticeable when i am in a drive through...
anyone heard something like this?
anyone heard something like this?
I've heard it periodically, but it usually goes away if I rev the engine.
Probably a belt or pulley. It is constant?
Do you spray down your engine bay to clean it?
11-25-2009, 11:47 AM
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My Ride: 2010 VW Passat Wagon 2.0l Tsi
Grey/Grey Budapest 18"
Lost to HPFP issues:
08 535i sport pkg
Lost to Dreaded E61 Sun roof leaks:
07 E61 530Xi
535i right....
EDIT:
Waste gate chatter and HPFP working ( HPFP is a prop shaft driven mechanical fuel pump). Normally you can hear it at low-er RPMS ( under 3500RPM) . Gets very apparent around walls where sound can echo.
Indicative if the N54 design.
The Waste gates articulation arms/valves don't do a good job shutting /seating the flap. So it flutters. Some of the solutions from BMW have only been temporary fixes: Software reprogram , to them being open at low rpm ( Lag) , Replacement ( comes back), replacement with new Turbos ( come back again), Adjustment of arm timing ( helps but come back), new Seat ( comes back).
I don't think I've seen a remedy...
Also may hear a metallic PINGPINGPing, like a bolt dropped in a blender.....
If it is not the engine could be the HVAC or a fan
I might need to make a sticky on the N54.. seeing a lot of common questions in the past two weeks on them.
EDIT:
Waste gate chatter and HPFP working ( HPFP is a prop shaft driven mechanical fuel pump). Normally you can hear it at low-er RPMS ( under 3500RPM) . Gets very apparent around walls where sound can echo.
Indicative if the N54 design.
The Waste gates articulation arms/valves don't do a good job shutting /seating the flap. So it flutters. Some of the solutions from BMW have only been temporary fixes: Software reprogram , to them being open at low rpm ( Lag) , Replacement ( comes back), replacement with new Turbos ( come back again), Adjustment of arm timing ( helps but come back), new Seat ( comes back).
I don't think I've seen a remedy...
Also may hear a metallic PINGPINGPing, like a bolt dropped in a blender.....
If it is not the engine could be the HVAC or a fan
I might need to make a sticky on the N54.. seeing a lot of common questions in the past two weeks on them.
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